You have a few letters crossed up. It’s an EGR valve, not an ERG, and your car should have one.

There’s not enough info provided as to codes, etc. but it could be assumed your car failed because of NOX.
This can be caused by a faulty EGR valve, clogged EGR passages, poorly performing engine, faulty catalytic converter, etc, etc.

This is the point where a proper diagnosis must be done instead of throwing NOX related parts at it.
You might get the car scanned for codes and post them. That will provide a starting point.
AutoZone, etc. will scan the car for free.